FLT_DIG
#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */
#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */
#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */
#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */
#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */